Langan, J. (2004). Sentence skills: A workbook for writers : form B (7th ed.). Boston: McGraw-Hill.
Dyfyniad Arddull ChicagoLangan, John. Sentence Skills: A Workbook for Writers : Form B. 7th ed. Boston: McGraw-Hill, 2004.
Dyfyniad MLALangan, John. Sentence Skills: A Workbook for Writers : Form B. 7th ed. Boston: McGraw-Hill, 2004.
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